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| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s
; rdar://7527734
define i32 @test1(i32 %x) nounwind ssp {
; CHECK-LABEL: test1:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: shll $5, %edi
; CHECK-NEXT: leal 3(%rdi), %eax
; CHECK-NEXT: retq
%t0 = shl i32 %x, 5
%t1 = or i32 %t0, 3
ret i32 %t1
}
; This test no longer requires or to be converted to 3 addr form because we are
; are able to use a zero extend instead of an 'and' which gives the register
; allocator freedom.
define i64 @test2(i8 %A, i8 %B) nounwind {
; CHECK-LABEL: test2:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $esi killed $esi def $rsi
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: shll $4, %edi
; CHECK-NEXT: andl $48, %edi
; CHECK-NEXT: movzbl %sil, %eax
; CHECK-NEXT: shrq $4, %rax
; CHECK-NEXT: orq %rdi, %rax
; CHECK-NEXT: retq
%C = zext i8 %A to i64
%D = shl i64 %C, 4
%E = and i64 %D, 48
%F = zext i8 %B to i64
%G = lshr i64 %F, 4
%H = or i64 %G, %E
ret i64 %H
}
;; Test that OR is only emitted as LEA, not as ADD.
; No reason to emit an add here, should be an or.
define void @test3(i32 %x, i32* %P) nounwind readnone ssp {
; CHECK-LABEL: test3:
; CHECK: # %bb.0:
; CHECK-NEXT: shll $5, %edi
; CHECK-NEXT: orl $3, %edi
; CHECK-NEXT: movl %edi, (%rsi)
; CHECK-NEXT: retq
%t0 = shl i32 %x, 5
%t1 = or i32 %t0, 3
store i32 %t1, i32* %P
ret void
}
define i32 @test4(i32 %a, i32 %b) nounwind readnone ssp {
; CHECK-LABEL: test4:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $esi killed $esi def $rsi
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: andl $6, %edi
; CHECK-NEXT: andl $16, %esi
; CHECK-NEXT: leal (%rsi,%rdi), %eax
; CHECK-NEXT: retq
%and = and i32 %a, 6
%and2 = and i32 %b, 16
%or = or i32 %and2, %and
ret i32 %or
}
define void @test5(i32 %a, i32 %b, i32* nocapture %P) nounwind ssp {
; CHECK-LABEL: test5:
; CHECK: # %bb.0:
; CHECK-NEXT: andl $6, %edi
; CHECK-NEXT: andl $16, %esi
; CHECK-NEXT: orl %edi, %esi
; CHECK-NEXT: movl %esi, (%rdx)
; CHECK-NEXT: retq
%and = and i32 %a, 6
%and2 = and i32 %b, 16
%or = or i32 %and2, %and
store i32 %or, i32* %P, align 4
ret void
}
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